Type
|
Synthetic
fiber insulation is bulky because of the heavy application of
the fiber. Used for extension grade wire, it can take rough
handling. Not for use in conduits. Binder burn-off above 400°F
(204°C) |
Wrapped
glass is used only on the single conductors. Usually used on
the smaller gage wires because it is easier to strip without
fraying. For thermocouple grade wire only. Binder burn-off above
400°F (204°C) |
Braided
glass is used on singles and for all jackets. Glass will not
burn at any temperature but will melt if over temperature. Any
burn-off is due to binders and colorings. Has very high tensil
strength. Binder burn-off above 400°F (204°C) |
High-Temp
glass extends the upper utilization temperature of fiberglass.
Although higher in cost it is better suited for the aluminum
industry than glass. Used with jacket or as twisted singles.
Binder burn-off above 400°F (204°C) |
Refrasil
is a vitreous silica fiber that is higher in cost than High-Temp
glass. Not as strong as glass but is utilized at higher temperatures.
The FEP sizing can leave a residue when burned off under vacuum
or restrictive atmospheres. |
Ceramic
fiber is designed for extreme temperature applications. Extremely
high in cost. Should not be used in closed tubes. Has an abrasive
feel when handling. Use appropriate protection when handling. |